1 /**
2   ******************************************************************************
3   * @file    stm32l0xx_hal_comp.h
4   * @author  MCD Application Team
5   * @brief   Header file of COMP HAL module.
6   ******************************************************************************
7   * @attention
8   *
9   * Copyright (c) 2016 STMicroelectronics.
10   * All rights reserved.
11   *
12   * This software is licensed under terms that can be found in the LICENSE file
13   * in the root directory of this software component.
14   * If no LICENSE file comes with this software, it is provided AS-IS.
15   *
16   ******************************************************************************
17   */
18 
19 /* Define to prevent recursive inclusion -------------------------------------*/
20 #ifndef __STM32L0xx_HAL_COMP_H
21 #define __STM32L0xx_HAL_COMP_H
22 
23 #ifdef __cplusplus
24  extern "C" {
25 #endif
26 
27 #if !defined (STM32L010xB) && !defined (STM32L010x8) && !defined (STM32L010x6) && !defined (STM32L010x4)
28 /* Includes ------------------------------------------------------------------*/
29 #include "stm32l0xx_hal_def.h"
30 
31 /** @addtogroup STM32L0xx_HAL_Driver
32   * @{
33   */
34 
35 /** @addtogroup COMP
36   * @{
37   */
38 
39 /* Exported types ------------------------------------------------------------*/
40 /** @defgroup COMP_Exported_Types COMP Exported Types
41   * @{
42   */
43 
44 /**
45   * @brief  COMP Init structure definition
46   */
47 typedef struct
48 {
49 
50   uint32_t WindowMode;         /*!< Set window mode of a pair of comparators instances
51                                     (2 consecutive instances odd and even COMP<x> and COMP<x+1>).
52                                     Note: HAL COMP driver allows to set window mode from any COMP instance of the pair of COMP instances composing window mode.
53                                     This parameter can be a value of @ref COMP_WindowMode */
54 
55   uint32_t Mode;               /*!< Set comparator operating mode to adjust power and speed.
56                                     Note: For the characteristics of comparator power modes
57                                           (propagation delay and power consumption), refer to device datasheet.
58                                     This parameter can be a value of @ref COMP_PowerMode */
59 
60   uint32_t NonInvertingInput;  /*!< Set comparator input plus (non-inverting input).
61                                     This parameter can be a value of @ref COMP_InputPlus */
62 
63   uint32_t InvertingInput;     /*!< Set comparator input minus (inverting input).
64                                     This parameter can be a value of @ref COMP_InputMinus */
65 
66   uint32_t OutputPol;          /*!< Set comparator output polarity.
67                                     This parameter can be a value of @ref COMP_OutputPolarity */
68 
69   uint32_t LPTIMConnection;    /*!< Set comparator output connection to LPTIM peripheral.
70                                     This parameter can be a value of @ref COMP_LPTIMConnection */
71 
72   uint32_t TriggerMode;        /*!< Set the comparator output triggering External Interrupt Line (EXTI).
73                                     This parameter can be a value of @ref COMP_EXTI_TriggerMode */
74 
75 }COMP_InitTypeDef;
76 
77 /**
78   * @brief  HAL COMP state machine: HAL COMP states definition
79   */
80 #define COMP_STATE_BITFIELD_LOCK  (0x10U)
81 typedef enum
82 {
83   HAL_COMP_STATE_RESET             = 0x00U,                                             /*!< COMP not yet initialized                             */
84   HAL_COMP_STATE_RESET_LOCKED      = (HAL_COMP_STATE_RESET | COMP_STATE_BITFIELD_LOCK), /*!< COMP not yet initialized and configuration is locked */
85   HAL_COMP_STATE_READY             = 0x01U,                                             /*!< COMP initialized and ready for use                   */
86   HAL_COMP_STATE_READY_LOCKED      = (HAL_COMP_STATE_READY | COMP_STATE_BITFIELD_LOCK), /*!< COMP initialized but configuration is locked         */
87   HAL_COMP_STATE_BUSY              = 0x02U,                                             /*!< COMP is running                                      */
88   HAL_COMP_STATE_BUSY_LOCKED       = (HAL_COMP_STATE_BUSY | COMP_STATE_BITFIELD_LOCK)   /*!< COMP is running and configuration is locked          */
89 }HAL_COMP_StateTypeDef;
90 
91 /**
92   * @brief  COMP Handle Structure definition
93   */
94 typedef struct __COMP_HandleTypeDef
95 {
96   COMP_TypeDef       *Instance;       /*!< Register base address    */
97   COMP_InitTypeDef   Init;            /*!< COMP required parameters */
98   HAL_LockTypeDef    Lock;            /*!< Locking object           */
99   __IO HAL_COMP_StateTypeDef  State;  /*!< COMP communication state */
100   __IO uint32_t      ErrorCode;       /*!< COMP Error code */
101 #if (USE_HAL_COMP_REGISTER_CALLBACKS == 1)
102   void (* TriggerCallback)(struct __COMP_HandleTypeDef *hcomp);   /*!< COMP trigger callback */
103   void (* MspInitCallback)(struct __COMP_HandleTypeDef *hcomp);   /*!< COMP Msp Init callback */
104   void (* MspDeInitCallback)(struct __COMP_HandleTypeDef *hcomp); /*!< COMP Msp DeInit callback */
105 #endif /* USE_HAL_COMP_REGISTER_CALLBACKS */
106 } COMP_HandleTypeDef;
107 
108 #if (USE_HAL_COMP_REGISTER_CALLBACKS == 1)
109 /**
110   * @brief  HAL COMP Callback ID enumeration definition
111   */
112 typedef enum
113 {
114   HAL_COMP_TRIGGER_CB_ID                = 0x00U,  /*!< COMP trigger callback ID */
115   HAL_COMP_MSPINIT_CB_ID                = 0x01U,  /*!< COMP Msp Init callback ID */
116   HAL_COMP_MSPDEINIT_CB_ID              = 0x02U   /*!< COMP Msp DeInit callback ID */
117 } HAL_COMP_CallbackIDTypeDef;
118 
119 /**
120   * @brief  HAL COMP Callback pointer definition
121   */
122 typedef  void (*pCOMP_CallbackTypeDef)(COMP_HandleTypeDef *hcomp); /*!< pointer to a COMP callback function */
123 
124 #endif /* USE_HAL_COMP_REGISTER_CALLBACKS */
125 
126 /**
127   * @}
128   */
129 
130 /* Exported constants --------------------------------------------------------*/
131 /** @defgroup COMP_Exported_Constants COMP Exported Constants
132   * @{
133   */
134 
135 /** @defgroup COMP_Error_Code COMP Error Code
136   * @{
137   */
138 #define HAL_COMP_ERROR_NONE             (0x00U)   /*!< No error */
139 #if (USE_HAL_COMP_REGISTER_CALLBACKS == 1)
140 #define HAL_COMP_ERROR_INVALID_CALLBACK (0x01U)   /*!< Invalid Callback error */
141 #endif /* USE_HAL_COMP_REGISTER_CALLBACKS */
142 /**
143   * @}
144   */
145 
146 /** @defgroup COMP_WindowMode COMP Window Mode
147   * @{
148   */
149 #define COMP_WINDOWMODE_DISABLE                 (0x00000000U)          /*!< Window mode disable: Comparators instances pair COMP1 and COMP2 are independent */
150 #define COMP_WINDOWMODE_COMP1_INPUT_PLUS_COMMON (COMP_CSR_COMP1WM)     /*!< Window mode enable: Comparators instances pair COMP1 and COMP2 have their input plus connected together. The common input is COMP1 input plus (COMP2 input plus is no more accessible). */
151 /**
152   * @}
153   */
154 
155 /** @defgroup COMP_PowerMode COMP power mode
156   * @{
157   */
158 /* Note: For the characteristics of comparator power modes                     */
159 /*       (propagation delay and power consumption),                           */
160 /*       refer to device datasheet.                                           */
161 #define COMP_POWERMODE_MEDIUMSPEED     (COMP_CSR_COMP2SPEED)       /*!< COMP power mode to low power (indicated as "high speed" in reference manual) (only for COMP instance: COMP2) */
162 #define COMP_POWERMODE_ULTRALOWPOWER   (0x00000000U)               /*!< COMP power mode to ultra low power (indicated as "low speed" in reference manual) (only for COMP instance: COMP2) */
163 /**
164   * @}
165   */
166 
167 /** @defgroup COMP_InputPlus COMP input plus (non-inverting input)
168   * @{
169   */
170 #define COMP_INPUT_PLUS_IO1            (0x00000000U)                                      /*!< Comparator input plus connected to IO1 (pin PA1 for COMP1, pin PA3 for COMP2) */
171 #define COMP_INPUT_PLUS_IO2            (COMP_CSR_COMP2INPSEL_0)                           /*!< Comparator input plus connected to IO2 (pin PB4 for COMP2) (only for COMP instance: COMP2) */
172 #define COMP_INPUT_PLUS_IO3            (COMP_CSR_COMP2INPSEL_1)                           /*!< Comparator input plus connected to IO3 (pin PA5 for COMP2) (only for COMP instance: COMP2) */
173 #define COMP_INPUT_PLUS_IO4            (COMP_CSR_COMP2INPSEL_0 | COMP_CSR_COMP2INPSEL_1)  /*!< Comparator input plus connected to IO4 (pin PB6 for COMP2) (only for COMP instance: COMP2) */
174 #define COMP_INPUT_PLUS_IO5            (COMP_CSR_COMP2INPSEL_2)                           /*!< Comparator input plus connected to IO5 (pin PB7 for COMP2) (only for COMP instance: COMP2) */
175 #if defined (STM32L011xx) || defined (STM32L021xx)
176 #define COMP_INPUT_PLUS_IO6            (COMP_CSR_COMP2INPSEL_2 | COMP_CSR_COMP2INPSEL_0)  /*!< Comparator input plus connected to IO6 (pin PA7 for COMP2) (only for COMP instance: COMP2) (Available only on devices STM32L0 category 1) */
177 #endif
178 /**
179   * @}
180   */
181 
182 /** @defgroup COMP_InputMinus COMP input minus (inverting input)
183   * @{
184   */
185 #define COMP_INPUT_MINUS_1_4VREFINT    (COMP_CSR_COMP2INNSEL_2                                                  ) /*!< Comparator input minus connected to 1/4 VREFINT (only for COMP instance: COMP2) */
186 #define COMP_INPUT_MINUS_1_2VREFINT    (COMP_CSR_COMP2INNSEL_2 |                          COMP_CSR_COMP2INNSEL_0) /*!< Comparator input minus connected to 1/2 VREFINT (only for COMP instance: COMP2) */
187 #define COMP_INPUT_MINUS_3_4VREFINT    (COMP_CSR_COMP2INNSEL_2 | COMP_CSR_COMP2INNSEL_1                         ) /*!< Comparator input minus connected to 3/4 VREFINT (only for COMP instance: COMP2) */
188 #define COMP_INPUT_MINUS_VREFINT       (0x00000000U)                                                              /*!< Comparator input minus connected to VrefInt */
189 #define COMP_INPUT_MINUS_DAC1_CH1      (                         COMP_CSR_COMP2INNSEL_1                         ) /*!< Comparator input minus connected to DAC1 channel 1 (DAC_OUT1) */
190 #define COMP_INPUT_MINUS_DAC1_CH2      (                         COMP_CSR_COMP2INNSEL_1 | COMP_CSR_COMP2INNSEL_0) /*!< Comparator input minus connected to DAC1 channel 2 (DAC_OUT2) */
191 #define COMP_INPUT_MINUS_IO1           (                                                  COMP_CSR_COMP2INNSEL_0) /*!< Comparator input minus connected to IO1 (pin PA0 for COMP1, pin PA2 for COMP2) */
192 #define COMP_INPUT_MINUS_IO2           (COMP_CSR_COMP2INNSEL_2 | COMP_CSR_COMP2INNSEL_1 | COMP_CSR_COMP2INNSEL_0) /*!< Comparator input minus connected to IO2 (pin PB3 for COMP2) (only for COMP instance: COMP2) */
193 /**
194   * @}
195   */
196 
197 
198 /** @defgroup COMP_LPTIMConnection COMP Low power timer connection definition
199   * @{
200   */
201 
202 #define COMP_LPTIMCONNECTION_DISABLED               (0x00000000U)    /*!< COMPx signal is gated */
203 #define COMP_LPTIMCONNECTION_IN1_ENABLED            (0x00000001U)    /*!< COMPx signal is connected to LPTIM input 1 */
204 #define COMP_LPTIMCONNECTION_IN2_ENABLED            (0x00000002U)    /*!< COMPx signal is connected to LPTIM input 2 */
205 /**
206   * @}
207   */
208 
209 /** @defgroup COMP_OutputPolarity COMP output Polarity
210   * @{
211   */
212 #define COMP_OUTPUTPOL_NONINVERTED             (0x00000000U)                /*!< COMP output on GPIO isn't inverted */
213 #define COMP_OUTPUTPOL_INVERTED                COMP_CSR_COMPxPOLARITY       /*!< COMP output on GPIO is inverted */
214 /**
215   * @}
216   */
217 
218 /** @defgroup COMP_OutputLevel COMP Output Level
219   * @{
220   */
221 /* Note: Comparator output level values are fixed to "0" and "1",             */
222 /* corresponding COMP register bit is managed by HAL function to match        */
223 /* with these values (independently of bit position in register).             */
224 
225 /* When output polarity is not inverted, comparator output is low when
226    the input plus is at a lower voltage than the input minus */
227 #define COMP_OUTPUT_LEVEL_LOW              (0x00000000U)
228 /* When output polarity is not inverted, comparator output is high when
229    the input plus is at a higher voltage than the input minus */
230 #define COMP_OUTPUT_LEVEL_HIGH             (0x00000001U)
231 /**
232   * @}
233   */
234 
235 /** @defgroup COMP_EXTI_TriggerMode COMP output to EXTI
236   * @{
237   */
238 #define COMP_TRIGGERMODE_NONE                 (0x00000000U)                                    /*!< Comparator output triggering no External Interrupt Line */
239 #define COMP_TRIGGERMODE_IT_RISING            (COMP_EXTI_IT | COMP_EXTI_RISING)                         /*!< Comparator output triggering External Interrupt Line event with interruption, on rising edge */
240 #define COMP_TRIGGERMODE_IT_FALLING           (COMP_EXTI_IT | COMP_EXTI_FALLING)                        /*!< Comparator output triggering External Interrupt Line event with interruption, on falling edge */
241 #define COMP_TRIGGERMODE_IT_RISING_FALLING    (COMP_EXTI_IT | COMP_EXTI_RISING | COMP_EXTI_FALLING)     /*!< Comparator output triggering External Interrupt Line event with interruption, on both rising and falling edges */
242 #define COMP_TRIGGERMODE_EVENT_RISING         (COMP_EXTI_EVENT | COMP_EXTI_RISING)                      /*!< Comparator output triggering External Interrupt Line event only (without interruption), on rising edge */
243 #define COMP_TRIGGERMODE_EVENT_FALLING        (COMP_EXTI_EVENT | COMP_EXTI_FALLING)                     /*!< Comparator output triggering External Interrupt Line event only (without interruption), on falling edge */
244 #define COMP_TRIGGERMODE_EVENT_RISING_FALLING (COMP_EXTI_EVENT | COMP_EXTI_RISING | COMP_EXTI_FALLING)  /*!< Comparator output triggering External Interrupt Line event only (without interruption), on both rising and falling edges */
245 /**
246   * @}
247   */
248 
249 /**
250   * @}
251   */
252 
253 /* Exported macro ------------------------------------------------------------*/
254 /** @defgroup COMP_Exported_Macros COMP Exported Macros
255   * @{
256   */
257 
258 /** @defgroup COMP_Handle_Management  COMP Handle Management
259   * @{
260   */
261 
262 /** @brief  Reset COMP handle state.
263   * @param  __HANDLE__  COMP handle
264   * @retval None
265   */
266 #if (USE_HAL_COMP_REGISTER_CALLBACKS == 1)
267 #define __HAL_COMP_RESET_HANDLE_STATE(__HANDLE__) do{                                                   \
268                                                      (__HANDLE__)->State = HAL_COMP_STATE_RESET;      \
269                                                      (__HANDLE__)->MspInitCallback = NULL;            \
270                                                      (__HANDLE__)->MspDeInitCallback = NULL;          \
271                                                     } while(0)
272 #else
273 #define __HAL_COMP_RESET_HANDLE_STATE(__HANDLE__) ((__HANDLE__)->State = HAL_COMP_STATE_RESET)
274 #endif
275 
276 /**
277   * @brief Clear COMP error code (set it to no error code "HAL_COMP_ERROR_NONE").
278   * @param __HANDLE__ COMP handle
279   * @retval None
280   */
281 #define COMP_CLEAR_ERRORCODE(__HANDLE__) ((__HANDLE__)->ErrorCode = HAL_COMP_ERROR_NONE)
282 
283 /**
284   * @brief  Enable the specified comparator.
285   * @param  __HANDLE__  COMP handle
286   * @retval None
287   */
288 #define __HAL_COMP_ENABLE(__HANDLE__)              SET_BIT((__HANDLE__)->Instance->CSR, COMP_CSR_COMPxEN)
289 
290 /**
291   * @brief  Disable the specified comparator.
292   * @param  __HANDLE__  COMP handle
293   * @retval None
294   */
295 #define __HAL_COMP_DISABLE(__HANDLE__)             CLEAR_BIT((__HANDLE__)->Instance->CSR, COMP_CSR_COMPxEN)
296 
297 /**
298   * @brief  Lock the specified comparator configuration.
299   * @note   Using this macro induce HAL COMP handle state machine being no
300   *         more in line with COMP instance state.
301   *         To keep HAL COMP handle state machine updated, it is recommended
302   *         to use function "HAL_COMP_Lock')".
303   * @param  __HANDLE__  COMP handle
304   * @retval None
305   */
306 #define __HAL_COMP_LOCK(__HANDLE__)                SET_BIT((__HANDLE__)->Instance->CSR, COMP_CSR_COMPxLOCK)
307 
308 /**
309   * @brief  Check whether the specified comparator is locked.
310   * @param  __HANDLE__  COMP handle
311   * @retval Value 0 if COMP instance is not locked, value 1 if COMP instance is locked
312   */
313 #define __HAL_COMP_IS_LOCKED(__HANDLE__)           (READ_BIT((__HANDLE__)->Instance->CSR, COMP_CSR_COMPxLOCK) == COMP_CSR_COMPxLOCK)
314 
315 /**
316   * @}
317   */
318 
319 /** @defgroup COMP_Exti_Management  COMP external interrupt line management
320   * @{
321   */
322 
323 /**
324   * @brief  Enable the COMP1 EXTI line rising edge trigger.
325   * @retval None
326   */
327 #define __HAL_COMP_COMP1_EXTI_ENABLE_RISING_EDGE()    SET_BIT(EXTI->RTSR, COMP_EXTI_LINE_COMP1)
328 
329 /**
330   * @brief  Disable the COMP1 EXTI line rising edge trigger.
331   * @retval None
332   */
333 #define __HAL_COMP_COMP1_EXTI_DISABLE_RISING_EDGE()   CLEAR_BIT(EXTI->RTSR, COMP_EXTI_LINE_COMP1)
334 
335 /**
336   * @brief  Enable the COMP1 EXTI line falling edge trigger.
337   * @retval None
338   */
339 #define __HAL_COMP_COMP1_EXTI_ENABLE_FALLING_EDGE()   SET_BIT(EXTI->FTSR, COMP_EXTI_LINE_COMP1)
340 
341 /**
342   * @brief  Disable the COMP1 EXTI line falling edge trigger.
343   * @retval None
344   */
345 #define __HAL_COMP_COMP1_EXTI_DISABLE_FALLING_EDGE()  CLEAR_BIT(EXTI->FTSR, COMP_EXTI_LINE_COMP1)
346 
347 /**
348   * @brief  Enable the COMP1 EXTI line rising & falling edge trigger.
349   * @retval None
350   */
351 #define __HAL_COMP_COMP1_EXTI_ENABLE_RISING_FALLING_EDGE()   do { \
352                                                                __HAL_COMP_COMP1_EXTI_ENABLE_RISING_EDGE(); \
353                                                                __HAL_COMP_COMP1_EXTI_ENABLE_FALLING_EDGE(); \
354                                                              } while(0)
355 
356 /**
357   * @brief  Disable the COMP1 EXTI line rising & falling edge trigger.
358   * @retval None
359   */
360 #define __HAL_COMP_COMP1_EXTI_DISABLE_RISING_FALLING_EDGE()  do { \
361                                                                __HAL_COMP_COMP1_EXTI_DISABLE_RISING_EDGE(); \
362                                                                __HAL_COMP_COMP1_EXTI_DISABLE_FALLING_EDGE(); \
363                                                              } while(0)
364 
365 /**
366   * @brief  Enable the COMP1 EXTI line in interrupt mode.
367   * @retval None
368   */
369 #define __HAL_COMP_COMP1_EXTI_ENABLE_IT()             SET_BIT(EXTI->IMR, COMP_EXTI_LINE_COMP1)
370 
371 /**
372   * @brief  Disable the COMP1 EXTI line in interrupt mode.
373   * @retval None
374   */
375 #define __HAL_COMP_COMP1_EXTI_DISABLE_IT()            CLEAR_BIT(EXTI->IMR, COMP_EXTI_LINE_COMP1)
376 
377 /**
378   * @brief  Generate a software interrupt on the COMP1 EXTI line.
379   * @retval None
380   */
381 #define __HAL_COMP_COMP1_EXTI_GENERATE_SWIT()         SET_BIT(EXTI->SWIER, COMP_EXTI_LINE_COMP1)
382 
383 /**
384   * @brief  Enable the COMP1 EXTI line in event mode.
385   * @retval None
386   */
387 #define __HAL_COMP_COMP1_EXTI_ENABLE_EVENT()           SET_BIT(EXTI->EMR, COMP_EXTI_LINE_COMP1)
388 
389 /**
390   * @brief  Disable the COMP1 EXTI line in event mode.
391   * @retval None
392   */
393 #define __HAL_COMP_COMP1_EXTI_DISABLE_EVENT()          CLEAR_BIT(EXTI->EMR, COMP_EXTI_LINE_COMP1)
394 
395 /**
396   * @brief  Check whether the COMP1 EXTI line flag is set.
397   * @retval RESET or SET
398   */
399 #define __HAL_COMP_COMP1_EXTI_GET_FLAG()              READ_BIT(EXTI->PR, COMP_EXTI_LINE_COMP1)
400 
401 /**
402   * @brief  Clear the COMP1 EXTI flag.
403   * @retval None
404   */
405 #define __HAL_COMP_COMP1_EXTI_CLEAR_FLAG()            WRITE_REG(EXTI->PR, COMP_EXTI_LINE_COMP1)
406 
407 /**
408   * @brief  Enable the COMP2 EXTI line rising edge trigger.
409   * @retval None
410   */
411 #define __HAL_COMP_COMP2_EXTI_ENABLE_RISING_EDGE()    SET_BIT(EXTI->RTSR, COMP_EXTI_LINE_COMP2)
412 
413 /**
414   * @brief  Disable the COMP2 EXTI line rising edge trigger.
415   * @retval None
416   */
417 #define __HAL_COMP_COMP2_EXTI_DISABLE_RISING_EDGE()   CLEAR_BIT(EXTI->RTSR, COMP_EXTI_LINE_COMP2)
418 
419 /**
420   * @brief  Enable the COMP2 EXTI line falling edge trigger.
421   * @retval None
422   */
423 #define __HAL_COMP_COMP2_EXTI_ENABLE_FALLING_EDGE()   SET_BIT(EXTI->FTSR, COMP_EXTI_LINE_COMP2)
424 
425 /**
426   * @brief  Disable the COMP2 EXTI line falling edge trigger.
427   * @retval None
428   */
429 #define __HAL_COMP_COMP2_EXTI_DISABLE_FALLING_EDGE()  CLEAR_BIT(EXTI->FTSR, COMP_EXTI_LINE_COMP2)
430 
431 /**
432   * @brief  Enable the COMP2 EXTI line rising & falling edge trigger.
433   * @retval None
434   */
435 #define __HAL_COMP_COMP2_EXTI_ENABLE_RISING_FALLING_EDGE()   do { \
436                                                                __HAL_COMP_COMP2_EXTI_ENABLE_RISING_EDGE(); \
437                                                                __HAL_COMP_COMP2_EXTI_ENABLE_FALLING_EDGE(); \
438                                                              } while(0)
439 
440 /**
441   * @brief  Disable the COMP2 EXTI line rising & falling edge trigger.
442   * @retval None
443   */
444 #define __HAL_COMP_COMP2_EXTI_DISABLE_RISING_FALLING_EDGE()   do { \
445                                                                __HAL_COMP_COMP2_EXTI_DISABLE_RISING_EDGE(); \
446                                                                __HAL_COMP_COMP2_EXTI_DISABLE_FALLING_EDGE(); \
447                                                              } while(0)
448 
449 /**
450   * @brief  Enable the COMP2 EXTI line in interrupt mode.
451   * @retval None
452   */
453 #define __HAL_COMP_COMP2_EXTI_ENABLE_IT()             SET_BIT(EXTI->IMR, COMP_EXTI_LINE_COMP2)
454 
455 /**
456   * @brief  Disable the COMP2 EXTI line in interrupt mode.
457   * @retval None
458   */
459 #define __HAL_COMP_COMP2_EXTI_DISABLE_IT()            CLEAR_BIT(EXTI->IMR, COMP_EXTI_LINE_COMP2)
460 
461 /**
462   * @brief  Generate a software interrupt on the COMP2 EXTI line.
463   * @retval None
464   */
465 #define __HAL_COMP_COMP2_EXTI_GENERATE_SWIT()         SET_BIT(EXTI->SWIER, COMP_EXTI_LINE_COMP2)
466 
467 /**
468   * @brief  Enable the COMP2 EXTI line in event mode.
469   * @retval None
470   */
471 #define __HAL_COMP_COMP2_EXTI_ENABLE_EVENT()           SET_BIT(EXTI->EMR, COMP_EXTI_LINE_COMP2)
472 
473 /**
474   * @brief  Disable the COMP2 EXTI line in event mode.
475   * @retval None
476   */
477 #define __HAL_COMP_COMP2_EXTI_DISABLE_EVENT()          CLEAR_BIT(EXTI->EMR, COMP_EXTI_LINE_COMP2)
478 
479 /**
480   * @brief  Check whether the COMP2 EXTI line flag is set.
481   * @retval RESET or SET
482   */
483 #define __HAL_COMP_COMP2_EXTI_GET_FLAG()              READ_BIT(EXTI->PR, COMP_EXTI_LINE_COMP2)
484 
485 /**
486   * @brief  Clear the COMP2 EXTI flag.
487   * @retval None
488   */
489 #define __HAL_COMP_COMP2_EXTI_CLEAR_FLAG()            WRITE_REG(EXTI->PR, COMP_EXTI_LINE_COMP2)
490 
491 /**
492   * @}
493   */
494 
495 /**
496   * @}
497   */
498 
499 
500 /* Private types -------------------------------------------------------------*/
501 /* Private constants ---------------------------------------------------------*/
502 /** @defgroup COMP_Private_Constants COMP Private Constants
503   * @{
504   */
505 /** @defgroup COMP_ExtiLine COMP EXTI Lines
506   * @{
507   */
508 #define COMP_EXTI_LINE_COMP1           (EXTI_IMR_IM21)  /*!< EXTI line 21 connected to COMP1 output */
509 #define COMP_EXTI_LINE_COMP2           (EXTI_IMR_IM22)  /*!< EXTI line 22 connected to COMP2 output */
510 /**
511   * @}
512   */
513 
514 /** @defgroup COMP_ExtiLine COMP EXTI Lines
515   * @{
516   */
517 #define COMP_EXTI_IT                        (0x01U)  /*!< EXTI line event with interruption */
518 #define COMP_EXTI_EVENT                     (0x02U)  /*!< EXTI line event only (without interruption) */
519 #define COMP_EXTI_RISING                    (0x10U)  /*!< EXTI line event on rising edge */
520 #define COMP_EXTI_FALLING                   (0x20U)  /*!< EXTI line event on falling edge */
521 /**
522   * @}
523   */
524 
525 /**
526   * @}
527   */
528 
529 /* Private macros ------------------------------------------------------------*/
530 /** @defgroup COMP_Private_Macros COMP Private Macros
531   * @{
532   */
533 
534 /** @defgroup COMP_GET_EXTI_LINE COMP private macros to get EXTI line associated with comparators
535   * @{
536   */
537 /**
538   * @brief  Get the specified EXTI line for a comparator instance.
539   * @param  __INSTANCE__  specifies the COMP instance.
540   * @retval value of @ref COMP_ExtiLine
541   */
542 #define COMP_GET_EXTI_LINE(__INSTANCE__)    (((__INSTANCE__) == COMP1) ?                 \
543                                              COMP_EXTI_LINE_COMP1 : COMP_EXTI_LINE_COMP2)
544 /**
545   * @}
546   */
547 
548 /** @defgroup COMP_IS_COMP_Definitions COMP private macros to check input parameters
549   * @{
550   */
551 #define IS_COMP_WINDOWMODE(__WINDOWMODE__)  (((__WINDOWMODE__) == COMP_WINDOWMODE_DISABLE)                || \
552                                              ((__WINDOWMODE__) == COMP_WINDOWMODE_COMP1_INPUT_PLUS_COMMON)  )
553 
554 #define IS_COMP_POWERMODE(__POWERMODE__)    (((__POWERMODE__) == COMP_POWERMODE_MEDIUMSPEED)  || \
555                                              ((__POWERMODE__) == COMP_POWERMODE_ULTRALOWPOWER)  )
556 
557 #define IS_COMP_WINDOWMODE_INSTANCE(INSTANCE) ((INSTANCE) == COMP1)
558 
559 #if defined (STM32L011xx) || defined (STM32L021xx)
560 #define IS_COMP_INPUT_PLUS(__COMP_INSTANCE__, __INPUT_PLUS__)                  \
561   (((__COMP_INSTANCE__) == COMP1)                                              \
562     ? (                                                                        \
563        (__INPUT_PLUS__) == COMP_INPUT_PLUS_IO1                                 \
564       )                                                                        \
565       :                                                                        \
566       (                                                                        \
567           ((__INPUT_PLUS__) == COMP_INPUT_PLUS_IO1)                            \
568        || ((__INPUT_PLUS__) == COMP_INPUT_PLUS_IO2)                            \
569        || ((__INPUT_PLUS__) == COMP_INPUT_PLUS_IO3)                            \
570        || ((__INPUT_PLUS__) == COMP_INPUT_PLUS_IO4)                            \
571        || ((__INPUT_PLUS__) == COMP_INPUT_PLUS_IO5)                            \
572        || ((__INPUT_PLUS__) == COMP_INPUT_PLUS_IO6)                            \
573       )                                                                        \
574   )
575 #else
576 #define IS_COMP_INPUT_PLUS(__COMP_INSTANCE__, __INPUT_PLUS__)                  \
577   (((__COMP_INSTANCE__) == COMP1)                                              \
578     ? (                                                                        \
579        (__INPUT_PLUS__) == COMP_INPUT_PLUS_IO1                                 \
580       )                                                                        \
581       :                                                                        \
582       (                                                                        \
583           ((__INPUT_PLUS__) == COMP_INPUT_PLUS_IO1)                            \
584        || ((__INPUT_PLUS__) == COMP_INPUT_PLUS_IO2)                            \
585        || ((__INPUT_PLUS__) == COMP_INPUT_PLUS_IO3)                            \
586        || ((__INPUT_PLUS__) == COMP_INPUT_PLUS_IO4)                            \
587        || ((__INPUT_PLUS__) == COMP_INPUT_PLUS_IO5)                            \
588       )                                                                        \
589   )
590 #endif
591 
592 #define IS_COMP_INPUT_MINUS(__COMP_INSTANCE__, __INPUT_MINUS__)                \
593   (((__COMP_INSTANCE__) == COMP1)                                              \
594     ? (                                                                        \
595           ((__INPUT_MINUS__) == COMP_INPUT_MINUS_VREFINT)                      \
596        || ((__INPUT_MINUS__) == COMP_INPUT_MINUS_DAC1_CH1)                     \
597        || ((__INPUT_MINUS__) == COMP_INPUT_MINUS_DAC1_CH2)                     \
598        || ((__INPUT_MINUS__) == COMP_INPUT_MINUS_IO1)                          \
599       )                                                                        \
600       :                                                                        \
601       (                                                                        \
602           ((__INPUT_MINUS__) == COMP_INPUT_MINUS_1_4VREFINT)                   \
603        || ((__INPUT_MINUS__) == COMP_INPUT_MINUS_1_2VREFINT)                   \
604        || ((__INPUT_MINUS__) == COMP_INPUT_MINUS_3_4VREFINT)                   \
605        || ((__INPUT_MINUS__) == COMP_INPUT_MINUS_VREFINT)                      \
606        || ((__INPUT_MINUS__) == COMP_INPUT_MINUS_DAC1_CH1)                     \
607        || ((__INPUT_MINUS__) == COMP_INPUT_MINUS_DAC1_CH2)                     \
608        || ((__INPUT_MINUS__) == COMP_INPUT_MINUS_IO1)                          \
609        || ((__INPUT_MINUS__) == COMP_INPUT_MINUS_IO2)                          \
610       )                                                                        \
611   )
612 
613 #define IS_COMP1_LPTIMCONNECTION(LPTIMCONNECTION)   (((LPTIMCONNECTION) == COMP_LPTIMCONNECTION_DISABLED) || \
614                                                      ((LPTIMCONNECTION) == COMP_LPTIMCONNECTION_IN1_ENABLED))
615 
616 #define IS_COMP2_LPTIMCONNECTION(LPTIMCONNECTION)   (((LPTIMCONNECTION) == COMP_LPTIMCONNECTION_DISABLED) || \
617                                                      ((LPTIMCONNECTION) == COMP_LPTIMCONNECTION_IN1_ENABLED) || \
618                                                      ((LPTIMCONNECTION) == COMP_LPTIMCONNECTION_IN2_ENABLED))
619 
620 #define IS_COMP2_LPTIMCONNECTION_RESTRICTED(LPTIMCONNECTION)   (((LPTIMCONNECTION) == COMP_LPTIMCONNECTION_DISABLED) || \
621                                                                 ((LPTIMCONNECTION) == COMP_LPTIMCONNECTION_IN1_ENABLED))
622 
623 #define IS_COMP_OUTPUTPOL(POL)  (((POL) == COMP_OUTPUTPOL_NONINVERTED)  || \
624                                  ((POL) == COMP_OUTPUTPOL_INVERTED))
625 
626 #define IS_COMP_TRIGGERMODE(__TRIGGERMODE__) (((__TRIGGERMODE__) == COMP_TRIGGERMODE_NONE)                 || \
627                                               ((__TRIGGERMODE__) == COMP_TRIGGERMODE_IT_RISING)            || \
628                                               ((__TRIGGERMODE__) == COMP_TRIGGERMODE_IT_FALLING)           || \
629                                               ((__TRIGGERMODE__) == COMP_TRIGGERMODE_IT_RISING_FALLING)    || \
630                                               ((__TRIGGERMODE__) == COMP_TRIGGERMODE_EVENT_RISING)         || \
631                                               ((__TRIGGERMODE__) == COMP_TRIGGERMODE_EVENT_FALLING)        || \
632                                               ((__TRIGGERMODE__) == COMP_TRIGGERMODE_EVENT_RISING_FALLING)   )
633 
634 
635 #define IS_COMP_OUTPUT_LEVEL(__OUTPUT_LEVEL__) (((__OUTPUT_LEVEL__) == COMP_OUTPUT_LEVEL_LOW)     || \
636                                                 ((__OUTPUT_LEVEL__) == COMP_OUTPUT_LEVEL_HIGH))
637 
638 /**
639   * @}
640   */
641 
642 /**
643   * @}
644   */
645 
646 /* Include COMP HAL Extended module */
647 #include "stm32l0xx_hal_comp_ex.h"
648 
649 /* Exported functions --------------------------------------------------------*/
650 /** @addtogroup COMP_Exported_Functions
651   * @{
652   */
653 
654 /** @addtogroup COMP_Exported_Functions_Group1
655   * @{
656   */
657 
658 /* Initialization and de-initialization functions  **********************************/
659 HAL_StatusTypeDef HAL_COMP_Init(COMP_HandleTypeDef *hcomp);
660 HAL_StatusTypeDef HAL_COMP_DeInit (COMP_HandleTypeDef *hcomp);
661 void              HAL_COMP_MspInit(COMP_HandleTypeDef *hcomp);
662 void              HAL_COMP_MspDeInit(COMP_HandleTypeDef *hcomp);
663 
664 #if (USE_HAL_COMP_REGISTER_CALLBACKS == 1)
665 /* Callbacks Register/UnRegister functions  ***********************************/
666 HAL_StatusTypeDef HAL_COMP_RegisterCallback(COMP_HandleTypeDef *hcomp, HAL_COMP_CallbackIDTypeDef CallbackID, pCOMP_CallbackTypeDef pCallback);
667 HAL_StatusTypeDef HAL_COMP_UnRegisterCallback(COMP_HandleTypeDef *hcomp, HAL_COMP_CallbackIDTypeDef CallbackID);
668 #endif /* USE_HAL_COMP_REGISTER_CALLBACKS */
669 
670 /**
671   * @}
672   */
673 
674 /* IO operation functions  *****************************************************/
675 /** @addtogroup COMP_Exported_Functions_Group2
676   * @{
677   */
678 HAL_StatusTypeDef HAL_COMP_Start(COMP_HandleTypeDef *hcomp);
679 HAL_StatusTypeDef HAL_COMP_Stop(COMP_HandleTypeDef *hcomp);
680 void              HAL_COMP_IRQHandler(COMP_HandleTypeDef *hcomp);
681 /**
682   * @}
683   */
684 
685 /* Peripheral Control functions  ************************************************/
686 /** @addtogroup COMP_Exported_Functions_Group3
687   * @{
688   */
689 HAL_StatusTypeDef HAL_COMP_Lock(COMP_HandleTypeDef *hcomp);
690 uint32_t          HAL_COMP_GetOutputLevel(COMP_HandleTypeDef *hcomp);
691 /* Callback in interrupt mode */
692 void              HAL_COMP_TriggerCallback(COMP_HandleTypeDef *hcomp);
693 /**
694   * @}
695   */
696 
697 /* Peripheral State functions  **************************************************/
698 /** @addtogroup COMP_Exported_Functions_Group4
699   * @{
700   */
701 HAL_COMP_StateTypeDef HAL_COMP_GetState(COMP_HandleTypeDef *hcomp);
702 uint32_t              HAL_COMP_GetError(COMP_HandleTypeDef *hcomp);
703 /**
704   * @}
705   */
706 
707 /**
708   * @}
709   */
710 
711 /**
712   * @}
713   */
714 
715 /**
716   * @}
717   */
718 #endif /* !defined (STM32L010xB) && !defined (STM32L010x8) && !defined (STM32L010x6) && !defined (STM32L010x4) */
719 
720 #ifdef __cplusplus
721 }
722 #endif
723 
724 #endif /* __STM32L0xx_HAL_COMP_H */
725 
726